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Hacked Event Broadcast

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Verified blockchain security incidents with original evidence and historical event dates.

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Historical events use their original event dates. Latest event dates first. Severity follows existing archive classifications.

Sep 26, 2020

2 verified updates
On September 26, the SushiSwap imitation project named GemSwap was exposed and LP was taken away. The query found that the project posted a tweet at around 15:00 today and revealed that it was attacked by the developer of "whatitdobb". It is understood that the project completed the liquidity migration earlier today, but the developer who initiated the attack had The relevant permission was obtained and the tokens in the liquidity pool were able to be taken away. The specific losses caused by this attack are currently unclear.ExpandCollapse

On September 26, the SushiSwap imitation project named GemSwap was exposed and LP was taken away. The query found that the project posted a tweet at around 15:00 today and revealed that it was attacked by the developer of "whatitdobb". It is understood that the project completed the liquidity migration earlier today, but the developer who initiated the attack had The relevant permission was obtained and the tokens in the liquidity pool were able to be taken away. The specific losses caused by this attack are currently unclear.

Attack method
Rug Pull
ExchangeSecurity
KuCoin exchange issued an announcement stating that KuCoin detected large withdrawals of Bitcoin and ERC-20 tokens in multiple hot wallets in the early morning of the 26th, and the deposit and withdrawal services have been suspended. KuCoin stated that the total amount involved in the KuCoin platform accounts for a relatively low proportion of the total funds held on the KuCoin platform, and the assets in the KuCoin cold wallet are not affected. At the same time, KuCoin has redeployed the hot wallet for the first time. KuCoin officially stated that if any user suffers losses in this incident, KuCoin and its insurance fund will be fully borne by KuCoin. KuCoin has now started a comprehensive internal security review. During this period, the deposit and withdrawal services will be suspended. The specific opening time will be Further notice. Kucoin said it will announce more details as soon as possible. As previously reported, starting at 2:49 am Beijing time on September 26, Etherscan marked the address of the cryptocurrency exchange KuCoin to transfer a large number of tokens, including MKR, USDT, OCEN, etc., to a new address beginning with 0xeb31973e0f. Including 11,486 Ethereum, 19,788,586 USDT, 525,405 Gladius (GLA), 77,874 Hawala (HAT), 21,660,274 Ocean Token (OCEAN), 8,893,428 Chroma (CHR), 30,452,178 Ampleforth Network (AMPL), 198,678 Ankr (ANKR) etc.ExpandCollapse

KuCoin exchange issued an announcement stating that KuCoin detected large withdrawals of Bitcoin and ERC-20 tokens in multiple hot wallets in the early morning of the 26th, and the deposit and withdrawal services have been suspended. KuCoin stated that the total amount involved in the KuCoin platform accounts for a relatively low proportion of the total funds held on the KuCoin platform, and the assets in the KuCoin cold wallet are not affected. At the same time, KuCoin has redeployed the hot wallet for the first time. KuCoin officially stated that if any user suffers losses in this incident, KuCoin and its insurance fund will be fully borne by KuCoin. KuCoin has now started a comprehensive internal security review. During this period, the deposit and withdrawal services will be suspended. The specific opening time will be Further notice. Kucoin said it will announce more details as soon as possible. As previously reported, starting at 2:49 am Beijing time on September 26, Etherscan marked the address of the cryptocurrency exchange KuCoin to transfer a large number of tokens, including MKR, USDT, OCEN, etc., to a new address beginning with 0xeb31973e0f. Including 11,486 Ethereum, 19,788,586 USDT, 525,405 Gladius (GLA), 77,874 Hawala (HAT), 21,660,274 Ocean Token (OCEAN), 8,893,428 Chroma (CHR), 30,452,178 Ampleforth Network (AMPL), 198,678 Ankr (ANKR) etc.

Amount of loss
$ 150,000,000
Attack method
Wallet Stolen
ETH EcosystemSecurity

Sep 20, 2020

2 verified updates
According to the intelligence of the SlowMist Zone, the LV Finance project of the Ethereum mining project is suspected of running away within an hour and 4 million have been transferred away. Unlike previous projects, the project used fake audit websites and provided false audit information to trick investors into doing business. Invest and run away when the amount in the fund pool is large enough after a period of time. Currently, the project website lv.finance is no longer accessible.ExpandCollapse

According to the intelligence of the SlowMist Zone, the LV Finance project of the Ethereum mining project is suspected of running away within an hour and 4 million have been transferred away. Unlike previous projects, the project used fake audit websites and provided false audit information to trick investors into doing business. Invest and run away when the amount in the fund pool is large enough after a period of time. Currently, the project website lv.finance is no longer accessible.

Amount of loss
$ 4,000,000
Attack method
Rug Pull
ETH EcosystemSecurity
The financial blogger "Super Bitcoin" stated on Weibo that Mr. Huai (weibo username "crash X") participated in the liquidity mining project Soda, and suddenly discovered a loophole in which 20,000 ETH can be directly liquidated Drop. But he chose to tell the development team, but the development team did not pay attention. He had no choice but to liquidate an ETH, and sent a Weibo warning to inform the developers of the existence of this bug. One hour later, the parties to the Soda agreement responded by prompting the borrower to repay and the mortgager to withdraw, and at the same time indicated that they would fix the loopholes and suspend the front-end borrowing function. But as of the early morning of September 21st, more than 400 ETH in Soda's mortgage loan pool were still maliciously liquidated. In the morning of the same day, the agreement officially stated on Twitter that the vulnerability has been fixed, and the newly deployed smart contract is expected to take effect at 21:00 on September 22.ExpandCollapse

The financial blogger "Super Bitcoin" stated on Weibo that Mr. Huai (weibo username "crash X") participated in the liquidity mining project Soda, and suddenly discovered a loophole in which 20,000 ETH can be directly liquidated Drop. But he chose to tell the development team, but the development team did not pay attention. He had no choice but to liquidate an ETH, and sent a Weibo warning to inform the developers of the existence of this bug. One hour later, the parties to the Soda agreement responded by prompting the borrower to repay and the mortgager to withdraw, and at the same time indicated that they would fix the loopholes and suspend the front-end borrowing function. But as of the early morning of September 21st, more than 400 ETH in Soda's mortgage loan pool were still maliciously liquidated. In the morning of the same day, the agreement officially stated on Twitter that the vulnerability has been fixed, and the newly deployed smart contract is expected to take effect at 21:00 on September 22.

Amount of loss
446 ETH
Attack method
Unknown
ETH EcosystemSecurity

Sep 19, 2020

1 verified update
The Bantiample team, a project on the Binance Smart Chain, has cashed out 3000 BNB to run away. At present, the main developer of the team has deleted the Telegram account, and the project token BMAP has fallen by more than 90% in a single day. According to the project's description, BMAP is a kind of AMPL-like imitation. Every time a user participates in a transaction, the total amount is reduced by 1%. However, it is actually just a common token, and it does not have the functions described by the project party. It just uses the AMPL project hotspot to commit fraud.ExpandCollapse

The Bantiample team, a project on the Binance Smart Chain, has cashed out 3000 BNB to run away. At present, the main developer of the team has deleted the Telegram account, and the project token BMAP has fallen by more than 90% in a single day. According to the project's description, BMAP is a kind of AMPL-like imitation. Every time a user participates in a transaction, the total amount is reduced by 1%. However, it is actually just a common token, and it does not have the functions described by the project party. It just uses the AMPL project hotspot to commit fraud.

Amount of loss
3,000 BNB
Attack method
Rug Pull
BSC EcosystemSecurity

Sep 16, 2020

1 verified update
According to Spanish prosecutors, they are investigating Arbistar's alleged manipulation of a Bitcoin trading scam. The disappearance of investor funds has affected 32,000 households who cannot use their savings invested in Bitcoin trading platform Arbistar. Earlier, it was reported that crypto company Arbistar announced that it would close a trading tool called Community Bot. The operator said that all funds on the platform are currently frozen and prevent users from withdrawing funds. Allegedly, the amount stolen may exceed 100 million euros (120 million U.S. dollars), which may be the “largest scam in Spain” related to cryptocurrencies.ExpandCollapse

According to Spanish prosecutors, they are investigating Arbistar's alleged manipulation of a Bitcoin trading scam. The disappearance of investor funds has affected 32,000 households who cannot use their savings invested in Bitcoin trading platform Arbistar. Earlier, it was reported that crypto company Arbistar announced that it would close a trading tool called Community Bot. The operator said that all funds on the platform are currently frozen and prevent users from withdrawing funds. Allegedly, the amount stolen may exceed 100 million euros (120 million U.S. dollars), which may be the “largest scam in Spain” related to cryptocurrencies.

Amount of loss
$ 120,000,000
Attack method
Scam
ExchangeSecurity

Sep 14, 2020

1 verified update
bZx officially tweeted that at 3:28 am Eastern time (15:30, September 13th, Beijing time), we began to study the decline in TVL of the agreement. By 6:18 AM EST (18:30, September 13th, Beijing time), we confirmed that several iTokens had repeated incidents. Lending is temporarily suspended. The duplicate method has been patched from the iToken contract code, and the agreement has resumed normal operation. According to the information of the founder of Compound, there are a total of US$2.6 million in LINK, US$1.6 million in ETH, and US$3.8 million in stablecoins, with a total of US$8 million in assets affected. 1inch co-founder Anton Bukov tweeted that the attacker had stolen about 4,700 ETH in this incident and attached the address of the stolen funds. In response, bZx said that the funds are currently not at risk. The funds listed have been deducted from our insurance fund. On September 16, bZx released an iToken repeat incident report, and the attacker has returned all funds.ExpandCollapse

bZx officially tweeted that at 3:28 am Eastern time (15:30, September 13th, Beijing time), we began to study the decline in TVL of the agreement. By 6:18 AM EST (18:30, September 13th, Beijing time), we confirmed that several iTokens had repeated incidents. Lending is temporarily suspended. The duplicate method has been patched from the iToken contract code, and the agreement has resumed normal operation. According to the information of the founder of Compound, there are a total of US$2.6 million in LINK, US$1.6 million in ETH, and US$3.8 million in stablecoins, with a total of US$8 million in assets affected. 1inch co-founder Anton Bukov tweeted that the attacker had stolen about 4,700 ETH in this incident and attached the address of the stolen funds. In response, bZx said that the funds are currently not at risk. The funds listed have been deducted from our insurance fund. On September 16, bZx released an iToken repeat incident report, and the attacker has returned all funds.

Attack method
Replay Attack
ETH EcosystemSecurity

Sep 10, 2020

2 verified updates
The wRAM of the EOS ecological DeFi liquidity mining project Coral was attacked by hackers and lost more than 120,000 EOS.ExpandCollapse

The wRAM of the EOS ecological DeFi liquidity mining project Coral was attacked by hackers and lost more than 120,000 EOS.

Amount of loss
120,000 EOS
Attack method
Reentrancy Attack
EOS EcosystemSecurity
Amplify, a user of DeFi, discovered a bug in SYFI, a smart contract for DeFi, and made 747 ETH on a single transaction, but from other users. The project crashed.ExpandCollapse

Amplify, a user of DeFi, discovered a bug in SYFI, a smart contract for DeFi, and made 747 ETH on a single transaction, but from other users. The project crashed.

Amount of loss
747 ETH
Attack method
Unknown
ETH EcosystemSecurity

Sep 9, 2020

2 verified updates
According to SlowMist Zone intelligence, EOS project EMD is suspected to be on the run. To date, EmeraldMine1 has transferred 780,000 USDT, 490,000 EOS and 56,000 DFS to Account SJI111111111, and 121,000 EOS has been transferred to Changenow coin Laundering. Current lost MARKET value: US $2,468,838 =17,281,866 RMB.ExpandCollapse

According to SlowMist Zone intelligence, EOS project EMD is suspected to be on the run. To date, EmeraldMine1 has transferred 780,000 USDT, 490,000 EOS and 56,000 DFS to Account SJI111111111, and 121,000 EOS has been transferred to Changenow coin Laundering. Current lost MARKET value: US $2,468,838 =17,281,866 RMB.

Amount of loss
$ 2,468,838
Attack method
Rug Pull
EOS EcosystemSecurity
A user with a Twitter account named Amplify revealed that he made a profit of US$250,000 from a system vulnerability in the new DeFi project Soft Finance.ExpandCollapse

A user with a Twitter account named Amplify revealed that he made a profit of US$250,000 from a system vulnerability in the new DeFi project Soft Finance.

Amount of loss
$ 250,000
Attack method
Unknown
OtherSecurity

Sep 8, 2020

2 verified updates
Banco Estado Bank, one of the three largest banks in Chile, had to shut down its nationwide business on the 7th due to a cyber attack by REvil ransomware.ExpandCollapse

Banco Estado Bank, one of the three largest banks in Chile, had to shut down its nationwide business on the 7th due to a cyber attack by REvil ransomware.

Attack method
Ransomware
OtherSecurity
European encrypted exchange ETERBASE has been hacked, resulting in the theft of some hot wallets and the loss of more than $5.4 million in assets.ExpandCollapse

European encrypted exchange ETERBASE has been hacked, resulting in the theft of some hot wallets and the loss of more than $5.4 million in assets.

Amount of loss
$ 5,400,000
Attack method
Wallet Stolen
WalletSecurity

Sep 7, 2020

2 verified updates
It is said that hackers used the encrypted virus NetWalker to enter the database and steal information from federal agencies. The dark web payment page linked in the ransomware description shows that the hacker initially paid $2 million worth of bitcoin to unlock the file. Within a week, this number had increased to 355 BTC, which is approximately $3.62 million.The Argentine government refused to pay the ransom.ExpandCollapse

It is said that hackers used the encrypted virus NetWalker to enter the database and steal information from federal agencies. The dark web payment page linked in the ransomware description shows that the hacker initially paid $2 million worth of bitcoin to unlock the file. Within a week, this number had increased to 355 BTC, which is approximately $3.62 million.The Argentine government refused to pay the ransom.

Attack method
Ransomware
OtherSecurity
Hackers carried out ransomware attacks against Tower Semiconductor Ltd (TSEM), a maker of wireless chips and camera sensors listed on the Israeli Nasdaq, and demanded hundreds of thousands of dollars in bitcoin ransoms. For safety reasons, TSEM shut down some running servers and suspended production in some factories.ExpandCollapse

Hackers carried out ransomware attacks against Tower Semiconductor Ltd (TSEM), a maker of wireless chips and camera sensors listed on the Israeli Nasdaq, and demanded hundreds of thousands of dollars in bitcoin ransoms. For safety reasons, TSEM shut down some running servers and suspended production in some factories.

Attack method
Ransomware
OtherSecurity

Sep 6, 2020

1 verified update
The transfer logic of TRON's DeFi project CherryFi calls the safeTransfer function to perform specific transfer operations. However, the USDT transfer logic does not return a value, which causes the safeTransfer call to never succeed, which leads to the lockup of funds, and therefore users cannot perform USDT transfers in and out. It is understood that the CherryFi code has not been audited.ExpandCollapse

The transfer logic of TRON's DeFi project CherryFi calls the safeTransfer function to perform specific transfer operations. However, the USDT transfer logic does not return a value, which causes the safeTransfer call to never succeed, which leads to the lockup of funds, and therefore users cannot perform USDT transfers in and out. It is understood that the CherryFi code has not been audited.

Attack method
Contract Vulnerability
Tron EcosystemSecurity

Sep 4, 2020

1 verified update
Nine Chainlink node operators were subjected to so-called "spam attacks." The attackers obtained approximately 700 ETH (worth approximately $335,000 at the time) from their "hot wallets".ExpandCollapse

Nine Chainlink node operators were subjected to so-called "spam attacks." The attackers obtained approximately 700 ETH (worth approximately $335,000 at the time) from their "hot wallets".

Amount of loss
700 ETH
Attack method
Spam attacks
ETH EcosystemSecurity

Aug 30, 2020

4 verified updates
GitHub user "1400 BitcoinStolen" said that a huge amount of his Bitcoin money had disappeared in the hack. This user uses a bitcoin purse Electrum, the user has no security update the software, so when he transfers the currency, it prompts to update and fix potential problems, but when he according to tip operation, the software takes advantage of a vulnerability to connect the hacker server, 1400 bitcoins (worth $16 million) is placed into the hacker's wallet.ExpandCollapse

GitHub user "1400 BitcoinStolen" said that a huge amount of his Bitcoin money had disappeared in the hack. This user uses a bitcoin purse Electrum, the user has no security update the software, so when he transfers the currency, it prompts to update and fix potential problems, but when he according to tip operation, the software takes advantage of a vulnerability to connect the hacker server, 1400 bitcoins (worth $16 million) is placed into the hacker's wallet.

Amount of loss
$ 16,000,000
Attack method
Fake software update
WalletSecurity
The well-known darknet market Empire Market has closed its operations. When it exited, the website defrauded about 2638 bitcoins from 1.3 million users, worth nearly 30 million U.S. dollars.ExpandCollapse

The well-known darknet market Empire Market has closed its operations. When it exited, the website defrauded about 2638 bitcoins from 1.3 million users, worth nearly 30 million U.S. dollars.

Amount of loss
$ 30,000,000
Attack method
Scam
OtherSecurity
Bitfly tweeted that another massive 51% attack on ETC today resulted in the restructuring of more than 7,000 blocks, equivalent to about two days of mining time. All missing blocks are removed from balances that have never expired, and all expenditures are checked for missing transactions.ExpandCollapse

Bitfly tweeted that another massive 51% attack on ETC today resulted in the restructuring of more than 7,000 blocks, equivalent to about two days of mining time. All missing blocks are removed from balances that have never expired, and all expenditures are checked for missing transactions.

Attack method
51% attack
BlockchainSecurity